PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-22:12:50
G01     254.2          36.6                9.9 +/-    1.70      15.3 +/-    1.70  0.040 / 0.040
G03     316.3          41.0                7.3 +/-    1.27      10.5 +/-    1.27  0.040 / 0.040
G11     239.7          14.2                8.3 +/-    1.49      21.1 +/-    1.49  0.020 / 0.030
G14     57.9           42.1                6.6 +/-    1.32       9.3 +/-    1.32  0.020 / 0.030
G22     308.0          63.0                7.6 +/-    0.83       8.4 +/-    0.83  0.390 / 0.240
G23     284.4          17.1                8.9 +/-    2.90      21.1 +/-    2.90  0.110 / 0.220
G25     41.4           11.4                7.9 +/-    2.29      21.5 +/-    2.29  0.060 / 0.080
G26     141.0          35.0                9.0 +/-    0.64      14.4 +/-    0.64  0.070 / 0.080
G31     41.2           63.5                6.9 +/-    0.43       7.6 +/-    0.43  0.090 / 0.080
G32     74.7           25.4                6.6 +/-    1.38      12.8 +/-    1.38  0.050 / 0.080